OBD Guide
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P0338

Crankshaft Position Sensor A Circuit High

P0338 is an OBD-II diagnostic trouble code meaning: Crankshaft Position Sensor A Circuit High. Common causes: open or short circuit in the dpkv circuit, failure of the sensor itself. Estimated repair cost: $22–111.

Severity
⚠️ Medium
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$22–111 (est.)

Symptoms

  • Difficulty starting the engine
  • Floating speed
  • Power dips
  • Engine stalls at idle
  • Check Engine Indication

Causes

  • Open or short circuit in the DPKV circuit
  • Failure of the sensor itself
  • Problems with the wiring harness (oxidation of contacts, damaged insulation)
  • Violation of the distance between the sensor and the drive disk
  • Engine ECU malfunction
  • Mechanical damage to the drive disk

How to Fix

  1. Reset the error with a scanner and check for its reappearance
  2. Visual inspection of the sensor and wiring for damage
  3. Check the resistance and inductance of the sensor (with a multimeter/oscilloscope)
  4. Check the gap between the sensor and the drive disk (0.5-1.5 mm depending on the model)
  5. Carry out diagnostics of the sensor circuit (insulation resistance, open circuit)
  6. Replace the sensor if a malfunction is detected
  7. Clean/replace the connector if oxides are detected

Related codes

P0335P0336P0337P0339P0016P0017

Error P0338 by Vehicle Brand

AcuraAudiBAICBMWBYDBuickCadillacChanganCheryChevroletChryslerCitroenDodgeDongfengExeedFAWFordForthingFotonGACGMGMCGeelyGreat WallHavalHondaHongqiHyundaiInfinitiJACJaecooJaguarJeepJetourKaiyiKiaLadaLexusLi AutoLifanLincolnLivanMazdaMercedes-BenzMercuryMitsubishiNIONissanOldsmobileOmodaOpelPeugeotPlymouthPontiacRenaultSWMSaturnSkodaSkywellSubaruSuzukiTankToyotaVolkswagenVolvoVoyahXPengZeekrZotye

FAQ

What does the P0338 code mean?

P0338 is an OBD-II diagnostic trouble code that indicates: Crankshaft Position Sensor A Circuit High

What causes a P0338 error code?

The most common causes of P0338 include: Open or short circuit in the DPKV circuit; Failure of the sensor itself; Problems with the wiring harness (oxidation of contacts, damaged insulation); Violation of the distance between the sensor and the drive disk.

How do I fix a P0338 diagnostic trouble code?

To fix P0338: Reset the error with a scanner and check for its reappearance. Visual inspection of the sensor and wiring for damage. Check the resistance and inductance of the sensor (with a multimeter/oscilloscope). For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P0338?

Limited driving only, diagnose soon

How much does it cost to fix P0338?

The estimated repair cost for P0338 is $22–111. Actual cost depends on your vehicle, location, and labor rates.

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See also: Russian version · NationStat